U.S. Citizenship and Immigration Services (USCIS) Civics Practice Test

The war between the North and the South in the United States is known as the Civil War. This conflict took place from 1861 to 1865 and was primarily centered around issues such as slavery, states' rights, and economic differences between the industrial North and the agrarian South. The Civil War was a crucial turning point in U.S. history, leading to the abolition of slavery and significant changes in the nation's laws and society.

The other historical conflicts listed do not pertain to the internal struggle between regions in the U.S. The Spanish-American War occurred in 1898 and involved the United States and Spain, primarily over issues in Cuba. The Mexican-American War, fought between 1846 and 1848, involved territorial disputes between the U.S. and Mexico. The War of 1812 was fought between the U.S. and Great Britain, mainly over maritime rights. Each of these wars had distinct causes and outcomes that do not relate to the sectional conflict between the North and the South.